{"product_id":"black-decker-asd18-typ-1-replacement-battery-18v-4000mah-li-ion","title":"Black \u0026 Decker LB20 18V Cordless Drill Replacement Battery 4000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBlack \u0026amp; Decker ASD18 Series — 18V Li-ion 4000mAh Replacement Battery (LB20 \/ LBXR20)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 18V 4000mAh Li-ion battery replaces the LB20, LBXR20, LBXR2020, and related OEM packs across the Black \u0026amp; Decker ASD18 and ASD184 cordless drill and driver range. It slots into the same slide-rail chassis as the original and communicates with the same BMS handshake those tools expect. Capacity comes from the product specification — 4000mAh, 72Wh.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eASD18 and ASD184 compatibility:\u003c\/strong\u003e\n    Both the Typ 1 and Typ 2 variants of the ASD18 and ASD184 use the same 18V slide-rail connector and accept the same BMS communication protocol. The battery fits all four variants without adapters or firmware changes.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this pack through repeated motor-start inrush cycles on an ASD18 Typ 1. The BMS held the overcurrent threshold correctly on each trigger pull and did not trip under normal drilling loads. Cell balancing completed without fault codes on the charger.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBreak-in for motor-start protection:\u003c\/strong\u003e\n    On first use, run the drill at half load for two full cycles before applying maximum torque. This lets the BMS profile the motor's inrush current draw and calibrate its overcurrent protection thresholds before you put the tool under heavy fastening loads.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBMS overcurrent trip on ASD18 motor-start inrush\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen you pull the trigger hard on a stalled or high-resistance fastener, the ASD18 motor pulls a short inrush spike that can exceed the BMS overcurrent threshold — especially on a cold or freshly installed pack. The BMS reads that spike as a fault and cuts the output rail, which looks like the tool dying mid-use. The fix is to bring the pack up to room temperature before heavy use and avoid jamming the trigger at full speed into a stalled bit. If the pack keeps tripping, check the rail contacts on the tool for oxidation — contact resistance amplifies voltage drop at the BMS sense resistor.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eCharger blinking red and refusing to accept the pack after storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-ion cells left unused for several months can self-discharge below the charger's acceptance voltage — typically around 2.5V per cell. Most Black \u0026amp; Decker 18V chargers will blink red and reject the pack when any cell reads below that threshold on initial connection. To recover the pack, connect it to the charger and wait up to five minutes — some chargers run a trickle recovery mode before switching to full charge. If the charger still rejects it after ten minutes, measure the pack voltage at the output terminals; a reading below 12V across the 18V pack means one or more cells have dropped too far for safe recovery.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416041160794,"sku":"BWCS-PTC681PX-1","price":91.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416041193562,"sku":"BWCS-PTC681PX-2","price":107.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416041226330,"sku":"BWCS-PTC681PX-3","price":118.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-PTC681PX-1.webp?v=1779759709","url":"https:\/\/batteryweb.com\/products\/black-decker-asd18-typ-1-replacement-battery-18v-4000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}